[exporter/awss3] Implement sending queue (open-telemetry#37274)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description
Implements the common queueing feature into the `awss3exporter`, as
suggested
[here](open-telemetry#36264).

Author: lopes-felipe

.chloggen/awss3exporter-sending-queue.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: awss3exporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Implement sending queue for S3 exporter
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [37274, 36264]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

exporter/awss3exporter/README.md

@@ -19,21 +19,22 @@ This exporter targets to support proto/json format.
 
 The following exporter configuration parameters are supported.
 
-| Name                  | Description                                                                                                                                | Default     |
-|:----------------------|:-------------------------------------------------------------------------------------------------------------------------------------------|-------------|
-| `region`              | AWS region.                                                                                                                                | "us-east-1" |
-| `s3_bucket`           | S3 bucket                                                                                                                                  |             |
-| `s3_prefix`           | prefix for the S3 key (root directory inside bucket).                                                                                      |             |
-| `s3_partition`        | time granularity of S3 key: hour or minute                                                                                                 | "minute"    |
-| `role_arn`            | the Role ARN to be assumed                                                                                                                 |             |
-| `file_prefix`         | file prefix defined by user                                                                                                                |             |
-| `marshaler`           | marshaler used to produce output data                                                                                                      | `otlp_json` |
-| `encoding`            | Encoding extension to use to marshal data. Overrides the `marshaler` configuration option if set.                                          |             |
+| Name                      | Description                                                                                                                                | Default     |
+|:--------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------|-------------|
+| `region`                  | AWS region.                                                                                                                                | "us-east-1" |
+| `s3_bucket`               | S3 bucket                                                                                                                                  |             |
+| `s3_prefix`               | prefix for the S3 key (root directory inside bucket).                                                                                      |             |
+| `s3_partition`            | time granularity of S3 key: hour or minute                                                                                                 | "minute"    |
+| `role_arn`                | the Role ARN to be assumed                                                                                                                 |             |
+| `file_prefix`             | file prefix defined by user                                                                                                                |             |
+| `marshaler`               | marshaler used to produce output data                                                                                                      | `otlp_json` |
+| `encoding`                | Encoding extension to use to marshal data. Overrides the `marshaler` configuration option if set.                                          |             |
 | `encoding_file_extension` | file format extension suffix when using the `encoding` configuration option. May be left empty for no suffix to be appended.               |             |
-| `endpoint`            | (REST API endpoint) overrides the endpoint used by the exporter instead of constructing it from `region` and `s3_bucket`                                       |             |
-| `s3_force_path_style` | [set this to `true` to force the request to use path-style addressing](http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html) | false       |
-| `disable_ssl`         | set this to `true` to disable SSL when sending requests                                                                                    | false       |
-| `compression`         | should the file be compressed                                                                                                              | none        |
+| `endpoint`                | (REST API endpoint) overrides the endpoint used by the exporter instead of constructing it from `region` and `s3_bucket`                   |             |
+| `s3_force_path_style`     | [set this to `true` to force the request to use path-style addressing](http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html) | false       |
+| `disable_ssl`             | set this to `true` to disable SSL when sending requests                                                                                    | false       |
+| `compression`             | should the file be compressed                                                                                                              | none        |
+| `sending_queue`           | [exporters common queuing](https://github.com/open-telemetry/opentelemetry-collector/blob/main/exporter/exporterhelper/README.md)          | disabled    |
 
 ### Marshaler
 
@@ -68,6 +69,12 @@ exporters:
         s3_bucket: 'databucket'
         s3_prefix: 'metric'
         s3_partition: 'minute'
+
+  # Optional (disabled by default)
+  sending_queue:
+    enabled: true
+    num_consumers: 10
+    queue_size: 100
 ```
 
 Logs and traces will be stored inside 'databucket' in the following path format.

exporter/awss3exporter/config.go

@@ -8,6 +8,7 @@ import (
 
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/config/configcompression"
+	"go.opentelemetry.io/collector/exporter/exporterhelper"
 	"go.uber.org/multierr"
 )
 
@@ -49,6 +50,8 @@ const (
 
 // Config contains the main configuration options for the s3 exporter
 type Config struct {
+	QueueSettings exporterhelper.QueueConfig `mapstructure:"sending_queue"`
+
 	S3Uploader    S3UploaderConfig `mapstructure:"s3uploader"`
 	MarshalerName MarshalerType    `mapstructure:"marshaler"`
 

exporter/awss3exporter/config_test.go

@@ -11,6 +11,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/exporter/exporterhelper"
 	"go.opentelemetry.io/collector/otelcol/otelcoltest"
 	"go.uber.org/multierr"
 
@@ -32,7 +33,12 @@ func TestLoadConfig(t *testing.T) {
 
 	e := cfg.Exporters[component.MustNewID("awss3")].(*Config)
 	encoding := component.MustNewIDWithName("foo", "bar")
+
+	queueCfg := exporterhelper.NewDefaultQueueConfig()
+	queueCfg.Enabled = false
+
 	assert.Equal(t, &Config{
+		QueueSettings:         queueCfg,
 		Encoding:              &encoding,
 		EncodingFileExtension: "baz",
 		S3Uploader: S3UploaderConfig{
@@ -59,9 +65,16 @@ func TestConfig(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, cfg)
 
+	queueCfg := exporterhelper.QueueConfig{
+		Enabled:      true,
+		NumConsumers: 23,
+		QueueSize:    42,
+	}
+
 	e := cfg.Exporters[component.MustNewID("awss3")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Bucket:    "foo",
@@ -88,9 +101,13 @@ func TestConfigForS3CompatibleSystems(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, cfg)
 
+	queueCfg := exporterhelper.NewDefaultQueueConfig()
+	queueCfg.Enabled = false
+
 	e := cfg.Exporters[component.MustNewID("awss3")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:           "us-east-1",
 			S3Bucket:         "foo",
@@ -200,9 +217,13 @@ func TestMarshallerName(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, cfg)
 
+	queueCfg := exporterhelper.NewDefaultQueueConfig()
+	queueCfg.Enabled = false
+
 	e := cfg.Exporters[component.MustNewID("awss3")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Bucket:    "foo",
@@ -215,6 +236,7 @@ func TestMarshallerName(t *testing.T) {
 	e = cfg.Exporters[component.MustNewIDWithName("awss3", "proto")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Bucket:    "bar",
@@ -239,9 +261,13 @@ func TestCompressionName(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, cfg)
 
+	queueCfg := exporterhelper.NewDefaultQueueConfig()
+	queueCfg.Enabled = false
+
 	e := cfg.Exporters[component.MustNewID("awss3")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Bucket:    "foo",
@@ -255,6 +281,7 @@ func TestCompressionName(t *testing.T) {
 	e = cfg.Exporters[component.MustNewIDWithName("awss3", "proto")].(*Config)
 
 	assert.Equal(t, &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Bucket:    "bar",

exporter/awss3exporter/factory.go

@@ -26,7 +26,11 @@ func NewFactory() exporter.Factory {
 }
 
 func createDefaultConfig() component.Config {
+	queueCfg := exporterhelper.NewDefaultQueueConfig()
+	queueCfg.Enabled = false
+
 	return &Config{
+		QueueSettings: queueCfg,
 		S3Uploader: S3UploaderConfig{
 			Region:      "us-east-1",
 			S3Partition: "minute",
@@ -39,19 +43,31 @@ func createLogsExporter(ctx context.Context,
 	params exporter.Settings,
 	config component.Config,
 ) (exporter.Logs, error) {
-	s3Exporter := newS3Exporter(config.(*Config), "logs", params)
+	cfg, err := checkAndCastConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	s3Exporter := newS3Exporter(cfg, "logs", params)
 
 	return exporterhelper.NewLogs(ctx, params,
 		config,
 		s3Exporter.ConsumeLogs,
-		exporterhelper.WithStart(s3Exporter.start))
+		exporterhelper.WithStart(s3Exporter.start),
+		exporterhelper.WithQueue(cfg.QueueSettings),
+	)
 }
 
 func createMetricsExporter(ctx context.Context,
 	params exporter.Settings,
 	config component.Config,
 ) (exporter.Metrics, error) {
-	s3Exporter := newS3Exporter(config.(*Config), "metrics", params)
+	cfg, err := checkAndCastConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	s3Exporter := newS3Exporter(cfg, "metrics", params)
 
 	if config.(*Config).MarshalerName == SumoIC {
 		return nil, fmt.Errorf("metrics are not supported by sumo_ic output format")
@@ -60,14 +76,21 @@ func createMetricsExporter(ctx context.Context,
 	return exporterhelper.NewMetrics(ctx, params,
 		config,
 		s3Exporter.ConsumeMetrics,
-		exporterhelper.WithStart(s3Exporter.start))
+		exporterhelper.WithStart(s3Exporter.start),
+		exporterhelper.WithQueue(cfg.QueueSettings),
+	)
 }
 
 func createTracesExporter(ctx context.Context,
 	params exporter.Settings,
 	config component.Config,
 ) (exporter.Traces, error) {
-	s3Exporter := newS3Exporter(config.(*Config), "traces", params)
+	cfg, err := checkAndCastConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	s3Exporter := newS3Exporter(cfg, "traces", params)
 
 	if config.(*Config).MarshalerName == SumoIC {
 		return nil, fmt.Errorf("traces are not supported by sumo_ic output format")
@@ -77,5 +100,16 @@ func createTracesExporter(ctx context.Context,
 		params,
 		config,
 		s3Exporter.ConsumeTraces,
-		exporterhelper.WithStart(s3Exporter.start))
+		exporterhelper.WithStart(s3Exporter.start),
+		exporterhelper.WithQueue(cfg.QueueSettings),
+	)
+}
+
+// checkAndCastConfig checks the configuration type and casts it to the S3 exporter Config struct.
+func checkAndCastConfig(c component.Config) (*Config, error) {
+	cfg, ok := c.(*Config)
+	if !ok {
+		return nil, fmt.Errorf("config structure is not of type *awss3exporter.Config")
+	}
+	return cfg, nil
 }

exporter/awss3exporter/testdata/config.yaml

@@ -3,6 +3,11 @@ receivers:
 
 exporters:
   awss3:
+    sending_queue:
+      enabled: true
+      num_consumers: 23
+      queue_size: 42
+
     s3uploader:
         region: 'us-east-1'
         s3_bucket: 'foo'